Men's shirts on sale, checked

There are 26 men's shirts on sale at Markham, Relay Jeans and Sportscene today, all badged 50% off or more. We have watched the price of 25 of them long enough to judge the badge, and 17 give a real saving of 20% or more against the price the item actually holds. 6 prices have dropped in the last week; the cards say which and when.